Allen-Bradley Sipha™ 440N-S32099 Type-S21 Non-Contact Interlock Switch, Magnetic Actuator, 2NC Contact Configuration

The Sipha™ sensors, with molded-in brackets and diminutive sizes, are extremely versatile and simple to install. The Sipha™ sensor must be connected to the Sipha™ control unit giving a monitored circuit. For high risk applications, the control unit is used with a single sensor to give a high integrity system. For other applications, multiple sensors (including mechanical switches) can be connected to one Sipha™ control unit.